MdePkg/Include/Protocol/PartitionInfo.h

   1 /** @file
   2   This file defines the EFI Partition Information Protocol.
   3
   4   Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7   @par Revision Reference:
   8   This Protocol is introduced in UEFI Specification 2.7
   9
  10 **/
  11
  12 #ifndef __PARTITION_INFO_PROTOCOL_H__
  13 #define __PARTITION_INFO_PROTOCOL_H__
  14
  15 #include <IndustryStandard/Mbr.h>
  16 #include <Uefi/UefiGpt.h>
  17
  18 //
  19 // EFI Partition Information Protocol GUID value
  20 //
  21 #define EFI_PARTITION_INFO_PROTOCOL_GUID \
  22   { 0x8cf2f62c, 0xbc9b, 0x4821, { 0x80, 0x8d, 0xec, 0x9e, 0xc4, 0x21, 0xa1, 0xa0 }};
  23
  24
  25 #define EFI_PARTITION_INFO_PROTOCOL_REVISION     0x0001000
  26 #define PARTITION_TYPE_OTHER                     0x00
  27 #define PARTITION_TYPE_MBR                       0x01
  28 #define PARTITION_TYPE_GPT                       0x02
  29
  30 #pragma pack(1)
  31
  32 ///
  33 /// Partition Information Protocol structure.
  34 ///
  35 typedef struct {
  36   //
  37   // Set to EFI_PARTITION_INFO_PROTOCOL_REVISION.
  38   //
  39   UINT32                     Revision;
  40   //
  41   // Partition info type (PARTITION_TYPE_MBR, PARTITION_TYPE_GPT, or PARTITION_TYPE_OTHER).
  42   //
  43   UINT32                     Type;
  44   //
  45   // If 1, partition describes an EFI System Partition.
  46   //
  47   UINT8                      System;
  48   UINT8                      Reserved[7];
  49   union {
  50     ///
  51     /// MBR data
  52     ///
  53     MBR_PARTITION_RECORD     Mbr;
  54     ///
  55     /// GPT data
  56     ///
  57     EFI_PARTITION_ENTRY      Gpt;
  58   } Info;
  59 } EFI_PARTITION_INFO_PROTOCOL;
  60
  61 #pragma pack()
  62
  63 ///
  64 /// Partition Information Protocol GUID variable.
  65 ///
  66 extern EFI_GUID gEfiPartitionInfoProtocolGuid;
  67
  68 #endif